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• Sockets: RAW or STREAM

  - by user1415536

  May be the question is a bit stupid, but I'll ask it. I read a lot about raw sockets in network, have seen several examples. So, basically with raw sockets it's possible to build own stack of headers, like stack = IP + TCP/UDP + OWN_HEADER. My question is, is it possible to get some kind of ready frame of first two(IP + TCP/UDP) from the linux kernel and then just append own header to them? The operating system in question is linux and the language is C. I cannot find any function which can do such a thing, but may be I'm digging in a wrong direction.

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• Best way to perform DELETE that uses ids from a SELECT statement in MYSQL

  - by Aglystas

  I'm working on a stored procedure, that needs to delete specific rows based on a timestamp. Here's what I was going to use until I found out you can't include a select clause in the delete statement if they are both working on the same table. DELETE FROM product WHERE merchant_id = 2 AND product_id IN (SELECT product_id FROM product WHERE merchant_id = 1 AND timestamp_updated > 1275062558); Is there a good way to handle this within a stored procedure. Normally I would just throw the logic to build the product_id list in php, but I'm trying to have all the processing done on the data server.

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• call inline function and pass in current item as the argument - Flex 3

  - by wcpro

  Im trying to create a loop of items like this... for each (var btn:Object in ViewButtonData) { // build element var box:HBox = new HBox(); box.styleName = "lefttab"; box.width = "100%"; box.addEventListener("rollOver", HoverTab(btn.id, 1)); box.addEventListener("rollOut", HoverTab(btn.id, 0)); // add element to list } I would like to pass in current HBox to the 'HoverTab' function. Is there a way to do that?

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• Mono - Could not find a 'Sub Main' in ''

  - by lampej

  I started a new solution (with multiple projects) and am trying to get it to build. Initially I was getting an internal compiler error and thought maybe it had to do with MySql, so I removed all references to MySql. Now I am getting the error "Could not find a 'Sub Main' in ''". I have made sure that all of my projects have a Main subroutine like this: Public Shared Sub Main() End Sub 2 out of the 7 projects will compile. I don't know what makes these projects different from the others, and the error message isn't very helpful. Any experience with this one?

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• Have visual studio copy x64 DLL or x86 DLL when building a C# project

  - by MrPurpleStreak

  We're building a C# app that uses an external DLL for Sqlite.NET. This is a .NET dll but it embeds a C dll inside it and so it comes in x86 and x64 flavours. We add a reference to the x86 version in the project so when we build and run on x86 it's fine. Visual studio copies the dll to the bin folder and runs. On x64 it still copies the x86 version of course and then when it runs it fails to load it. We get round this by temporarily setting our project to be x86 only, but ideally we'd like to tell visual studio to copy the correct version depending on which flavour of machine it is. Any ideas how?

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• new vs2008 user

  - by user245823

  Hello, I am trying to build a release version of my project. Our prof made us create a static library which i built using debug version. then i made a release version of that static library using /mt as my c runtime now in my test application (release version) I use the same runtime option and add that static library and also ignore the libcmd.lib in the ignore settings for the linker. i resolved most of the problem this is the last part lnk4075 /edit and continue due to /opt:icf specification compositelib.lib (my staticlib) lnk2001 unresolved external symbol _winmain@16. libcmtd.lib these are the last two that i can't seem to figure out.

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• how to give language option at installation time of my .net project?

  - by Ashwin

  I created one desktop project in c#. i want to know about how it could be use for different languages. i created resx file for all the forms like that: select particular form goes to the property window set localiztion true select language in which i want to show in particular language. convert all labels text and other functionality in selected language and build it. after building one another resx file created other than default resx. This process is did for all the form. so now each form having to resx file first is hi.resx for hindi and another is default resx. now my qus is that : how to give language selection option at installation time. and when user choose any language then my application is converted in that language that means particular language resx file set life time whenever user uninstall that application.

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• How to modify XML on Objective-C?

  - by Vic

  Hi, I'm working on a project for the iPad, I need to read and write to an xml file, which is also used by the counter part of the application in windows. The problem that I have is that I've been looking around but I haven't found a way to modify an element or attribute in an xml, without having to build the whole xml again. I saw this other post, which is basically the same problem that I have, and I also end it up in the same point as the person asking the question, NSXMLParser and TouchXML are read only and do not allowed me to modify my xml. Any other suggestion about what can I use? Thanks!

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• IIS5, ASP.NET (3.5) Application and Visual Studio 2008

  - by Lakeshore

  I have a solution that was developed in VS 2008 that is configured to use IIS. I configure the Virtual directory in IIS the same way I have with other working solutions using IIS. When I either build and run the solution in VS 2008 or browse the virtual directory using IIS, I get the following error message. Internet Explorer cannot display the webpage What you can try: It appears you are not connected to the Internet, but you might want to try to reconnect to the Internet Retype the address Go back to the previous page. Most likely causes: You are not connected to the Internet The website is encountering problems There might be a typing error in the address. Why might this be?

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• Can't find netbooted for Kerrighed pxe boot with Ubuntu Lucid Server

  - by Pengin

  I'm following installtion guides for pxe booting and kerrighed. I can't find the package nfsbooted for Ubuntu 10.04. Where did it go? Context: At work I have access to 8 mini-ITX PCs and am trying to build a cluster. My plans include trying Condor, GridGain, Hadoop, and recently Kerrighed has caught my eye. (I reaslise these are all for different kinds of things, I'm just evaluating). Ideally, I'd like to have all the nodes network boot from a single server, since that seems so much easier to manage, plus I can 'borrow' additional PCs for a while without touching their HD. I've been getting on great with Ubuntu Lucid Server (10.04), trying to follow the only guides I can find to get pxe booting (and ultimately kerrighed) to work. This guide is for Ubuntu 8.04 and this one is for Debian. They both refer to a package I can't seem to find, nfsbooted. Has this package been replaced? Am I doing something daft?

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• google collections ordering on map values

  - by chris-gr

  I would like to order a map based on the values. Function<Map.Entry<A, Double>, Double> getSimFunction = new Function<Map.Entry<A, Double>, Double>() { public Double apply(Map.Entry<A, Double> entry) { return entry.getValue(); } }; final Ordering<Map.Entry<A, Double>> entryOrdering = Ordering.natural().onResultOf(getSimFunction); ImmutableSortedMap.orderedBy(entryOrdering).putAll(....).build(); How can I create a new sortedMap based on the ordering results or a sortedset based on the map.keyset()?

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• Client / Server application for Video BroadCasting on LAN

  - by jbl

  I m much of a newbie to client/server applications and networking.I am currently starting up a project in which we are planning to create an application or something like a website accessible only to clients in that LAN network.We want the server to upload videos so that the clients can view them whenever they want.Also the clients can upload videos.Also we want some kind of registration to provide authentication to avoid bogus videos.Also additional features that can be added on later like comment section,ratings,Groups etc. Basically what we want is to build mini-youtube but with one major difference , we want the application to be LAN based. This is the idea behind the project.But we dont know where to start from as we are new to this stuff and also we have like 1 year to work on the project.Please guide me as to what all softwares i'll be needing to get this working !

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• Javascript hasOwnProperty does not work under Google Chrome

  - by WebRookie

  I am currently working with some help and it has been going well, until this incident. function runCommand(commandString) { commands = new Object(); commands.clear = function(){ $('#terminal').html('') } parameters = commandString.split(" "); command = parameters.shift(); if( commands.hasOwnProperty(command)){ commandscommand; } else { $('#terminal').append(command+' command not recognized.'+''); } } The person who was helping me made this function, so I could run the "terminal-like" browsers that I needed to work on. It works fine when using Firefox, heres an example: guest@shell:/$ sudo make me sandwich sudo command not recognized. guest@shell:/$ clear *clears* guest@shell:/$ clear But under google chrome this happen: guest@shell:/$ sudo make me sandwich sudo command not recognized. guest@shell:/$ clear clear command not recognized. I believe that it has something to do with "commands.hasOwnProperty(command)" that is preventing it from working properly. I am using JQuery the javascript library to build the website, and I need to know how to solve this problem, or an alternative.

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• Avoiding jagged text when pasting into vi?

  - by overtherainbow

  Hello Although I have no problem using SecureCRT (5.1.2 build 274) to work from Windows and connect to PC's running Linux, I have a problem when connecting to an embedded Asterisk appliance that provides"vi" through BusyBox 1.4.1 (2008-03-10). The issue I'm having, is that when I paste code into vi, the text appears jagged like this: <?php try { $dbh = new PDO("sqlite:./db.sqlite"); $dbh->exec("CREATE TABLE IF NOT EXISTS customer (id INTEGER PRIMARY KEY AUTOINCREMENT, name VARCHAR(255))"); Does someone what the problem is? Is there a way to reconfigure either BusyBox or SecureCRT so that I can paste successfully? Thank you.

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• Compile MvcContrib Portable Area with aspnet_compiler

  - by isuruceanu

  Hi I have a .net mvc 2 web application. I deployed this application using aspnet_compiler and a nant build file like <target name="deploy.advance.application"> <exec program="${aspnet.compiler}" commandline='-f -u -c -p ${dir.website.advance.application} -v temp ${dir.publish.advance.application}' /> <mkdir dir="${dir.publish.advance.application}\App_Data" /> </target> Now I started to implment PortableArea, at least LoginArea with all pages embedded, required by the MvcContrib PA. On my local machine works fine, but on testing environment (when I deploy the application with aspnet_compiler) the application could not found Login.aspx view. So the question is how to deploy such applications? There is a directive from aspnet_compiler to tell the compiler that there are some embedded resources? Thanks

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• set map in google maps with TimerTask

  - by Chad White

  I would like to change the Position of the map in google maps v2 But Ive done it in a TimerTask ... target, zoom, bearing and so on and it says "IllegalStateException - not on the main thread What should I do? Any help? class Task extends TimerTask { @Override public void run() { CameraPosition cameraPosition = new CameraPosition.Builder() .target(Zt) // Sets the center of the map to Mountain View .zoom(12) // Sets the zoom .bearing(180) // Sets the orientation of the camera to east .tilt(30) // Sets the tilt of the camera to 30 degrees .build(); // Creates a CameraPosition from the builder mMap.moveCamera(CameraUpdateFactory.newCameraPosition(cameraPosition)); } } Timer timer = new Timer(); timer.scheduleAtFixedRate(new Task(), 0, 20000);

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• SBT equivalent of Ant target

  - by adelbertc

  What is the SBT equivalent (if any) of Ant targets? For example, a snippet in a build.xml file for Ant would be: <target name="runClient" description="run client"> <java classname="client.Client" fork="true"> <jvmarg value="-Djava.rmi.server.codebase=${client_web_codebase}"/> <jvmarg value="-Djava.security.policy=policy"/> <arg value="localhost"/> <classpath> <pathelement location="dist/client.jar"/> </classpath> </java> </target> And then I would do something like ant runClient to launch the application "client.Client" with the jvmargs specified in the XML.. is there an SBT equivalent, or a way for SBT to hook into Ant to do this?

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• Show friendly message on ASP.NET Ajax error

  - by balexandre

  You all know how annoying is this: I do have a log system and the correct error is well explicit there, but I want to give a better message to the user. I keep trying several ways but I'm using Telerik components and well jQuery and I ended up using both ASP.NET Ajax methods and jQuery, so I use function pageLoad() { try { var manager = Sys.WebForms.PageRequestManager.getInstance(); manager.add_endRequest(endRequest); manager.add_beginRequest(OnBeginRequest); manager } catch (err) { alert(err); } } as well $(document).ready(function() { ... } that alert(err) is never fired even upon OnClick events what's the best approach to avoid this message errors and provide a cleaner way? all this happens in <asp:UpdatePanel> as I use that when I didn't know better (3 years ago!) and I really don't want to mess up and build all again from scratch :( Any help is greatly appreciated Updated with more error windows after volpav solution

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• how to create Codeigniter route that doesn't override the other controller routes?

  - by bakazero

  I've got a lot controller in my Codeigniter apps, ex: Signup, Profile, Main, etc.. Now I want to build "User" controller. what I want: if people goes to url: example.com/signup, I want use default route to "Signup" Controller if people goes to url: example.com/bobby.ariffin, I want to reroute this to "User" Controller because the url not handled by any Controller in my apps. I had create this in my config/routes.php: $route['(:any)'] = "user/$1"; but it's override all the route in my apps to "User" Controller. Is there any simple route for Codeigniter that doesn't override the other controller routes?

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• Voice Control iOS

  - by Marc Tanis

  I would like to build a simple reader app for the iPad 2 that would allow users to navigate/read via voice controls. The app would allow the user to enter a mode where the microphone was live and listened for predefined keywords like 'down', 'up', 'next', 'back', 'home', etc. I don't want to reinvent the wheel on this so I'm just wondering first, if someone has done this already and if not, are there any good tutorials or SDKs available to help with recording someone's voice, and then comparing future output to see if it matches, or just dealing with the microphone in general?

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• Windows service Null ReferenceException

  - by Patrick

  I built a windows service on my local machine. when I install and run it locally it works perfectly fine. When I try to move it to my production machine I get a null reference exception error. I've created an installation package that also works perfectly fine on my machine, but when i run it on the production machine the service still fails. The service references a .dll that in turn has references to 3 other dlls. when i build the project it pulls all of the dlls into the debug folder for the project... I've even installed the service from that folder and it works localy on my machine. I know this has to have something to do with the references, but this is beyond me. Any tips/hints would be appreciated.

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• Define a class dynamically?

  - by Pekka

  Is there a way to dynamically and conditionally create a class definition in PHP, i.e. if (condition matches) include file containing class definition else class myclass extends ancestor_class { .................... } without eval()? My background is the accepted answer to this question. I am looking for the best way to build a untouchable core library, with user-defined empty classes extending the core library if necessary. I want to create the final class definition "on the fly" if there is no user-defined empty class for a certain ancestor class.

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• Is it possible to run a compiled program with Xcode on Mac OS X in FreeBSD? (Objective-C/Cocoa)

  - by Eonil

  Hi. I have a plan to build a web-site which running CGI made with Cocoa. My final goal is develop on Mac OS X, and run on FreeBSD. Is this possible? As I know, there is a free implementation of some NextStep classes, the GNUStep. The web-site is almost built with only strings. I read GNUStep documents, classes are enough. DB connection will be made with C interfaces. Most biggest problem which I'm concerning is linking and binary compatibility. I'm currently configuring FreeBSD on VirtualBox, but I wanna know any possibility informations about this from experts. This is not a production server. Just a trial. Please feel free to saying anything.

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• Employer wants direct, no-hack, ie6 support for CSS. Should I talk him out of it?

  - by DavidR

  I'm currently employed by a website Designer, he gets the clients and sends me a mockup in a fireworks file, and I send him the html/css/js. The problem is that he wants direct ie6 compatibility for every site I build. That is, no conditional ie6 hack, no separate style sheets. A lot of my html has suffered because of it. I just started writing html with him last summer, he took me in as an intern and taught me everything about it. Since then I built 4 web pages, but I haven't yet made anything I'm really proud of. Should I be trying harder to create stellar code beside my limitations or should I set him down and explain that his demands are killing the code for modern browsers?

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• Resources for learning how to better read code

  - by rsteckly

  Hi, I recently inherited a large codebase and am having to read it. The thing is, I've usually been the dev starting a project. As a result, I don't have a lot of experience reading code. My reaction to having to read a lot of code is, well, umm to rewrite it. But I need to bring myself up to speed quickly and build on top of an existing system. Do other people have techniques they've learned to absorb a code base? At this point, I'm just reading through the code. I've tried generating UML diagrams using UModel. They're so big they won't print cleanly and when I zoom in, I really do lose the perspective of seeing all the relationships. How have other people dealt with this problem?

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